... 2, 8- imetylquinolin-4(1H)-on 25 2. 2 .2 Tng hp v kt qu phõn tớch 4 -clo- 2, 8- imetylquinolin 26 2. 2.3 Tng hp 5-nitro - 4 -clo -2, 8- imetylquinolin 27 2. 3 Tng hp v kt qu phõn tớch cỏc mu tropolon 27 2. 3.1 Tng ... trỳc ca 2- (4- clo- 8- metyl quinolin - 2yl)- 4,5,6,7- tetraclo -1,3- troplon 27 2. 3 .2 Tng hp v phõn tớch cu trỳc ca 2- (5-nitro-4 -clo- 8- metyl quinolin -2- yl)- 4,5,6,7- tetraclo -1,3- troplon ... 4,5,6,7-tetraclo -1,3- tropolon 33 3 .2. 1 Kt qu phõn tớch cu trỳc ca 2- (4- clo- 8- metylquinolin -2- yl)4 ,5,6,7- tetraclo -1,3- tropolon 35 3 .2. 2 Kt qu phõn tớch cu trỳc ca 2- (5-nitro-4 -clo- 8- metylquinolin2 -yl)- 4,5,6,7-...